* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
-#include "vl.h"
+#include "hw/hw.h"
+#include "qemu-timer.h"
+#include "audio.h"
#define AUDIO_CAP "wav"
#include "audio_int.h"
} WAVVoiceOut;
static struct {
+ struct audsettings settings;
const char *wav_path;
} conf = {
- .wav_path = "qemu.wav"
+ .settings.freq = 44100,
+ .settings.nchannels = 2,
+ .settings.fmt = AUD_FMT_S16,
+ .wav_path = "qemu.wav"
};
-static int wav_run_out (HWVoiceOut *hw)
+static int wav_run_out (HWVoiceOut *hw, int live)
{
WAVVoiceOut *wav = (WAVVoiceOut *) hw;
- int rpos, live, decr, samples;
+ int rpos, decr, samples;
uint8_t *dst;
- st_sample_t *src;
+ struct st_sample *src;
int64_t now = qemu_get_clock (vm_clock);
int64_t ticks = now - wav->old_ticks;
- int64_t bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
+ int64_t bytes =
+ muldiv64 (ticks, hw->info.bytes_per_second, get_ticks_per_sec ());
if (bytes > INT_MAX) {
samples = INT_MAX >> hw->info.shift;
samples = bytes >> hw->info.shift;
}
- live = audio_pcm_hw_get_live_out (hw);
- if (!live) {
- return 0;
- }
-
wav->old_ticks = now;
decr = audio_MIN (live, samples);
samples = decr;
hw->clip (dst, src, convert_samples);
qemu_put_buffer (wav->f, dst, convert_samples << hw->info.shift);
- mixeng_clear (src, convert_samples);
rpos = (rpos + convert_samples) % hw->samples;
samples -= convert_samples;
}
}
-static int wav_init_out (HWVoiceOut *hw, int freq, int nchannels, audfmt_e fmt)
+static int wav_init_out (HWVoiceOut *hw, struct audsettings *as)
{
WAVVoiceOut *wav = (WAVVoiceOut *) hw;
- int bits16;
+ int bits16 = 0, stereo = 0;
uint8_t hdr[] = {
0x52, 0x49, 0x46, 0x46, 0x00, 0x00, 0x00, 0x00, 0x57, 0x41, 0x56,
0x45, 0x66, 0x6d, 0x74, 0x20, 0x10, 0x00, 0x00, 0x00, 0x01, 0x00,
0x02, 0x00, 0x44, 0xac, 0x00, 0x00, 0x10, 0xb1, 0x02, 0x00, 0x04,
0x00, 0x10, 0x00, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00
};
+ struct audsettings wav_as = conf.settings;
- freq = audio_state.fixed_freq_out;
- fmt = audio_state.fixed_fmt_out;
- nchannels = audio_state.fixed_channels_out;
+ (void) as;
- switch (fmt) {
+ stereo = wav_as.nchannels == 2;
+ switch (wav_as.fmt) {
case AUD_FMT_S8:
case AUD_FMT_U8:
bits16 = 0;
bits16 = 1;
break;
- default:
- dolog ("Internal logic error bad format %d\n", fmt);
+ case AUD_FMT_S32:
+ case AUD_FMT_U32:
+ dolog ("WAVE files can not handle 32bit formats\n");
return -1;
}
hdr[34] = bits16 ? 0x10 : 0x08;
- audio_pcm_init_info (
- &hw->info,
- freq,
- nchannels,
- bits16 ? AUD_FMT_S16 : AUD_FMT_U8,
- audio_need_to_swap_endian (0)
- );
- hw->bufsize = 4096;
- wav->pcm_buf = qemu_mallocz (hw->bufsize);
+
+ wav_as.endianness = 0;
+ audio_pcm_init_info (&hw->info, &wav_as);
+
+ hw->samples = 1024;
+ wav->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
if (!wav->pcm_buf) {
- dolog ("Can not initialize WAV buffer of %d bytes\n",
- hw->bufsize);
+ dolog ("Could not allocate buffer (%d bytes)\n",
+ hw->samples << hw->info.shift);
return -1;
}
le_store (hdr + 22, hw->info.nchannels, 2);
le_store (hdr + 24, hw->info.freq, 4);
- le_store (hdr + 28, hw->info.freq << (bits16 + (nchannels == 2)), 4);
- le_store (hdr + 32, 1 << (bits16 + (nchannels == 2)), 2);
+ le_store (hdr + 28, hw->info.freq << (bits16 + stereo), 4);
+ le_store (hdr + 32, 1 << (bits16 + stereo), 2);
- wav->f = fopen (conf.wav_path, "wb");
+ wav->f = qemu_fopen (conf.wav_path, "wb");
if (!wav->f) {
dolog ("Failed to open wave file `%s'\nReason: %s\n",
conf.wav_path, strerror (errno));
static void wav_fini_out (HWVoiceOut *hw)
{
WAVVoiceOut *wav = (WAVVoiceOut *) hw;
- int stereo = hw->info.nchannels == 2;
uint8_t rlen[4];
uint8_t dlen[4];
- uint32_t rifflen = (wav->total_samples << stereo) + 36;
- uint32_t datalen = wav->total_samples << stereo;
+ uint32_t datalen = wav->total_samples << hw->info.shift;
+ uint32_t rifflen = datalen + 36;
- if (!wav->f || !hw->active) {
+ if (!wav->f) {
return;
}
qemu_fseek (wav->f, 32, SEEK_CUR);
qemu_put_buffer (wav->f, dlen, 4);
- fclose (wav->f);
+ qemu_fclose (wav->f);
wav->f = NULL;
qemu_free (wav->pcm_buf);
ldebug ("wav_fini");
}
-struct audio_option wav_options[] = {
- {"PATH", AUD_OPT_STR, &conf.wav_path,
- "Path to wave file", NULL, 0},
- {NULL, 0, NULL, NULL, NULL, 0}
+static struct audio_option wav_options[] = {
+ {
+ .name = "FREQUENCY",
+ .tag = AUD_OPT_INT,
+ .valp = &conf.settings.freq,
+ .descr = "Frequency"
+ },
+ {
+ .name = "FORMAT",
+ .tag = AUD_OPT_FMT,
+ .valp = &conf.settings.fmt,
+ .descr = "Format"
+ },
+ {
+ .name = "DAC_FIXED_CHANNELS",
+ .tag = AUD_OPT_INT,
+ .valp = &conf.settings.nchannels,
+ .descr = "Number of channels (1 - mono, 2 - stereo)"
+ },
+ {
+ .name = "PATH",
+ .tag = AUD_OPT_STR,
+ .valp = &conf.wav_path,
+ .descr = "Path to wave file"
+ },
+ { /* End of list */ }
};
-struct audio_pcm_ops wav_pcm_ops = {
- wav_init_out,
- wav_fini_out,
- wav_run_out,
- wav_write_out,
- wav_ctl_out,
-
- NULL,
- NULL,
- NULL,
- NULL,
- NULL
+static struct audio_pcm_ops wav_pcm_ops = {
+ .init_out = wav_init_out,
+ .fini_out = wav_fini_out,
+ .run_out = wav_run_out,
+ .write = wav_write_out,
+ .ctl_out = wav_ctl_out,
};
struct audio_driver wav_audio_driver = {
- INIT_FIELD (name = ) "wav",
- INIT_FIELD (descr = )
- "WAV renderer http://wikipedia.org/wiki/WAV",
- INIT_FIELD (options = ) wav_options,
- INIT_FIELD (init = ) wav_audio_init,
- INIT_FIELD (fini = ) wav_audio_fini,
- INIT_FIELD (pcm_ops = ) &wav_pcm_ops,
- INIT_FIELD (can_be_default = ) 0,
- INIT_FIELD (max_voices_out = ) 1,
- INIT_FIELD (max_voices_in = ) 0,
- INIT_FIELD (voice_size_out = ) sizeof (WAVVoiceOut),
- INIT_FIELD (voice_size_in = ) 0
+ .name = "wav",
+ .descr = "WAV renderer http://wikipedia.org/wiki/WAV",
+ .options = wav_options,
+ .init = wav_audio_init,
+ .fini = wav_audio_fini,
+ .pcm_ops = &wav_pcm_ops,
+ .can_be_default = 0,
+ .max_voices_out = 1,
+ .max_voices_in = 0,
+ .voice_size_out = sizeof (WAVVoiceOut),
+ .voice_size_in = 0
};
projects / qemu.git / blobdiff